Thanks for the info. I was thinking the cemeteries in the area of the 1864 Valley Campaign might have some 31/39 TN Inf graves.
Do you know which companies of the 31/39 were sent to the Shenandoah Valley? I read somewhere that half of Vaughn's Brigade was sent under McFarland (the other half staying in East TN). My research is based on the soldier's genealogy and military service and consequently filed by last name only (not by unit).